This is an individual National Research Service Award for post-doctoral research training, which provides support for promising Fellowship Applicants with the potential to become productive, independent investigators in scientific health-related research fields. Brain networks that are critical for flexible control of behavior are compromised in autism spectrum disorders (ASD), and this likely contributes to restricted, repetitive, and maladaptive patterns of behavior. Using complementary neuroimaging techniques, this research will identify the neural basis of cognitive dysfunction that gives rise to restricted, repetitive behavior in ASD. The findings will guide investigations of neuropathology and provide targets for intervention to improve function.